lsslot: Fix missing header for __be32 types
lsslot: Fix missing header for __be32 types

On my system (Ubuntu 15.04) lsslot does not build as it's missing the
__be32 types.

 src/drmgr/lsslot.c: In function ‘print_drconf_mem’:
 src/drmgr/lsslot.c:712:2: error: unknown type name ‘__be32’
   __be32 *aa;

Signed-off-by: Joel Stanley <4816dabf8db1bc6cac35b3a24cab2ff844b5b0c7@jms.id.au>

shenki/powerpc-utils,shenki/powerpc-utils,shenki/powerpc-utils